How to create a button on my task bar to create an xterm?

[Steven W. Orr]

Under Core 4, I used to be able to pull somethingf up called kcontrol to 
set kde settings? I don't see that anymore. Is it gone?

Also, I had a button I made for myself in the taskbar to create an xterm 
or run emacs. That ability to right-click on the task bar and create a 
button for a non-KDE app seems to now be gone. Is there a way to now do 
this?

TIA

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